Ammonia is present in natural water resources and is also a product of microbial decomposition of proteins in decaying animals and plants. If the concentration of ammonia in surface water shows the degree of pollution for domestic water use. Ammonia and its compounds are also used as fertilizers. Generally, the most ideal resolution will not be lower than 0.1mg/L, usually only 0.5mg/L. The HI96715 ammonia nitrogen microcomputer tester has a CAL CHECK function, and by purchasing dedicated NIST standard solution, you can check the performance of the instrument at any time to determine if recalibration is needed. Convenient and humanized confirmation operations can ensure good calibration of the instrument. The specially designed positioning mark ensures consistency in placing the cuvette into the colorimeter slot each time. The larger diameter design of the cuvette facilitates adding samples and reagents. All instruments have been factory calibrated, and the excellent optical system design means that the instruments do not need frequent calibration. High precision measurement results, simple operation steps, excellent waterproof performance and light source dust-proof measurement system give it wide applicability in both laboratories and field measurements. Prompt information can guide daily operations, and the instrument has low battery indication and automatic shutdown functions.
Main performance features of HI93715:
- Compact design, easy to hold;
- Simple operation, easily complete various operations;
- Clear and readable LCD display for quick data reading;
- Cuvette positioning mark ensures consistent testing, digital noise meter;
- Powder or liquid packaged reagents. Precise dosage of reagents ensures good reproducibility;
- Automatic power-off energy-saving mode;
- Dual-line easy-to-read LCD display, user-friendly interface, simple operation;
- Optional calibration kit for precise calibration;
- User calibration function, after instrument calibration, data is automatically updated, can always check calibration information, meets ISO and GLP laboratory management requirements and EPA standards;
- Countdown function ensures consistency in reaction time, avoids differences due to different users' operations;
- Powder or liquid packaged reagents. Precise dosage of reagents ensures good reproducibility;
- Excellent waterproof performance, suitable for both laboratory and field use with UV-visible spectrophotometer;
- Automatic power-off energy-saving mode, precision balance;
HI93715 (ammonia nitrogen)
HI96715 (ammonia nitrogen)
Range: 0.00 to 9.99 mg/L (NH3-N)
Resolution: 0.01 mg/L
Measurement accuracy: ±5% of reading ±0.05 mg/L
Unit conversion: [NH3] = [NH3-N] x 1.214
Light detector: Silicon photovoltaic cell and LED
Wavelength setting: 470 nm
Measurement method: ASTM D1426-92, Nessler reagent colorimetric method. Ammonia nitrogen reacts with reagent to form light orange-yellow.
Power supply: 1 × 9V battery
Automatic shutdown: In measurement mode, automatic shutdown after 10 minutes of non-use
Applicable environment: 0 to 50°C (32 to 122°F), RH max 95%, no condensation
Dimensions and weight: 180 × 83 × 46 mm, 290g; 192 × 102 × 67 mm, 290g
Standard configuration ordering information:
HI93715 A: Ammonia nitrogen microcomputer tester, HI93715-01 ammonia nitrogen matching reagents (100 times), HI731313 glass cuvette, HI731318 cuvette dedicated cleaning cloth, bilingual manual, dedicated instrument carrying case
HI93715 B: Ammonia nitrogen microcomputer tester, HI93715-03 ammonia nitrogen matching reagents (300 times), HI731313 glass cuvette, HI731318 cuvette dedicated cleaning cloth, bilingual manual, dedicated instrument carrying case
HI96715 A: Ammonia nitrogen microcomputer tester, CAL CHECK function, HI93715-01 ammonia nitrogen matching reagents (100 times), HI731333 glass cuvette, HI731318 dedicated cleaning cloth, bilingual manual, dedicated instrument carrying box